Package org.apache.geronimo.gshell.commands.builtins

Source Code of org.apache.geronimo.gshell.commands.builtins.ExitCommand

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.geronimo.gshell.commands.builtins;

import org.apache.geronimo.gshell.ExitNotification;
import org.apache.geronimo.gshell.clp.Argument;
import org.apache.geronimo.gshell.command.Variables;
import org.apache.geronimo.gshell.command.annotation.CommandComponent;
import org.apache.geronimo.gshell.layout.LayoutManager;
import org.apache.geronimo.gshell.support.OsgiCommandSupport;

/**
* Exit the current shell.
*
* @version $Rev: 593392 $ $Date: 2007-11-09 03:14:15 +0100 (Fri, 09 Nov 2007) $
*/
@CommandComponent(id="gshell-builtins:exit", description="Exit the (sub)shell")
public class ExitCommand
    extends OsgiCommandSupport
{
    @Argument(description="System exit code")
    private int exitCode = 0;

    protected Object doExecute() throws Exception {
        if (context.getVariables().get(LayoutManager.CURRENT_NODE) != null)
        {
            log.info("Exiting subshell");
            Variables v = context.getVariables();
            while (v != null && v.get(LayoutManager.CURRENT_NODE) != null) {
                v.unset(LayoutManager.CURRENT_NODE);
                v = v.parent();
            }
            return SUCCESS;
        }
        else
        {
            log.info("Exiting w/code: {}", exitCode);

            //
            // DO NOT Call System.exit() !!!
            //

            throw new ExitNotification(exitCode);
        }
    }
}
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